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slang. to make a woman pregnant: You don't want to get knocked up by some guy you hardly know.
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a warm-up or practice session before a game in a racket sport (such as tennis). knock up. 2 of 2. verb. knocked up; knocking up; knocks up. transitive verb.
verb · informal. Alsoknock together to assemble quickly; improvise. to knock up a set of shelves · informal. to waken; rouse. to knock someone up early · slang.
Adjective. knocked up (not comparable) (slang, principally American, sometimes offensive) Pregnant, typically outside of marriage. synonym ▲quotations ▼ ...
1. phrasal verb. If you knock something up, you make it or build it very quickly, using whatever materials are available. [British, informal]
knock up · ​(British English, informal) to wake somebody by knocking on their door · ​(informal) to make a woman pregnant.
Synonyms for KNOCKED UP: waked, woke, awakened, awaked, awoke, roused, wakened, aroused; Antonyms of KNOCKED UP: lulled, hypnotized, mesmerized.
(colloquial) To put together, fabricate, or assemble, particularly if done hastily or temporarily. See also knock together. [from 16th c.].